Use BlockProgressBar with iterables
masterTo track progress while iterating over a collection (like a std::vector), use indicators::BlockProgressBar and provide the total size of the collection via option::MaxProgress. You can update the progress bar in each iteration using bar.tick() and update descriptive text using bar.set_option(option::PostfixText{...}).
#include <chrono>
#include <indicators/block_progress_bar.hpp>
#include <indicators/cursor_control.hpp>
#include <thread>
int main() {
// Hide cursor
indicators::show_console_cursor(false);
// Random list of numbers
std::vector<size_t> numbers;
for (size_t i = 0; i < 1259438; ++i) {
numbers.push_back(i);
}
using namespace indicators;
BlockProgressBar bar{
option::BarWidth{80},
option::ForegroundColor{Color::white},
option::ShowPercentage{true},
option::FontStyles{
std::vector<FontStyle>{FontStyle::bold}},
option::MaxProgress{numbers.size()}
};
std::cout << "Iterating over a list of numbers (size = "
<< numbers.size() << ")\n";
std::vector<size_t> result;
for (size_t i = 0; i < numbers.size(); ++i) {
// Perform some computation
result.push_back(numbers[i] * numbers[i]);
// Show iteration as postfix text
bar.set_option(option::PostfixText{
std::to_string(i) + "/" + std::to_string(numbers.size())
});
// update progress bar
bar.tick();
}
bar.mark_as_completed();
// Show cursor
indicators::show_console_cursor(true);
return 0;
}